The length measuring apparatus consists of the mounting member and the length measuring instrument and

摘要

This invention, being accurate on the surface of the length measuring machine and every kind of form, consists of the installation and makes fixing possible installation jig which it stabilizes mechanically, it is something regarding the measuring of length device. The interchangeable installation jig, in order for it to be possible to install accurately on the measuring of length target surface, it is installed in the length measuring machine the measuring of length target with to face. Another application of the said installation jig has the firing base because the length measuring machine is locked, uses the said length measuring machine and while measuring, it is to try to be able to turn the said length measuring machine at least around 1 horizons. This way the said installation jig which was formed after the adjusting, tries the said device to be able to measure the point of measurement which differs without adopting the amendment due to geometric change.